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A long-term administration trial of SEP-363856 in patients with schizophrenia

A multicenter, uncontrolled, open-label trial to evaluate the tolerability, safety, and efficacy of long-term administration of SEP-363856 in patients with schizophrenia

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2071250092
Enrollment
100
Registered
2025-11-07
Start date
2025-12-22
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia

Interventions

SEP-363856 (75 mg/day or 100 mg/day)

Sponsors

Sanada Nobuhito
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Japanese male or female participants 18 years of age or older at the time of informed consent -Diagnosed with schizophrenia according to the DSM-5 -Judged by the investigator to be clinically stable for at least 8 weeks prior to screening -PANSS total score of 80 or less and CGI-S score 4 or less at both screening and baseline -No changes in antipsychotic medication for at least 6 weeks before screening (excluding minor dose adjustments for tolerability)

Exclusion criteria

Exclusion criteria: -History of psychiatric hospitalization within 8 weeks prior to screening -Treatment-resistant to antipsychotic therapy (ie, within 1 year to screening, despite administration of two or more marketed antipsychotics at appropriate doses for at least 4 weeks [28 consecutive days] in accordance with the package insert, psychiatric symptoms did not improve) -History of treatment with clozapine -Unwillingness, before or during the trial period, to comply with the requirements for prior and concomitant medications/therapies as specified in the protocol or use of prohibited medications at screening or baseline as specified in the protocol.

Design outcomes

Primary

MeasureTime frame
The incidence of treatment-emergent adverse events(TEAEs)

Contacts

Public ContactDrug Information Center

Otsuka Pharmaceutical Co., LTD.

opc_ctr@otsuka.jp+81-3-6361-7314

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026